Part 2: The Physiology of Hirsutism and Terminal Hair Growth

Facial hair growth in women involves the conversion of fine, invisible vellus hair into thick, pigmented terminal hair.

Hair follicles on the chin and jawline are sensitive to circulating androgens (male sex hormones present in all women, like testosterone). When free androgen levels shift or hair follicles become more sensitive to normal hormone levels, those specific follicles begin producing coarser, darker strands.

👇 HEAD TO PART 3 TO LEARN 4 COMMON CAUSES!